I hadn't really thought about this specific little detail, but otherwise, as I've mentioned before, this has been one of my problems with the Ice Age sequels, in that they just keep adding more and more supporting characters to the cast with each one, and that not only takes some of the focus away from the main trio, it also makes for a really crowded story. Sure, some of them have been funny or entertaining (Buck, Crash and Eddie), but a lot of them feel unnecessary.